Operating instructions

DMH Series VHF Radio General Information
BK RADIO
Specifications are subject to change without notice. Page 1-3
TRANSMITTER
25 / 30 kHz 12.5 / 15 kHz
RF OUTPUT POWER: 15 to 50 Watts 15 to 50 Watts
OPERATING FREQUENCY SPREAD: 38 MHz 38 MHz
SPURIOUS AND HARMONICS: 80 dB 80 dB
MODULATION DEVIATION: 5 kHz 2.5 kHz
FM HUM AND NOISE: 50 dB 45 dB
FREQUENCY STABILITY: ±2.5 PPM ±2.5 PPM
AUDIO DISTORTION: 3% 3%
AUDIO RESPONSE (per EIA): +1 dB / -3 dB +1 dB / -3 dB
MODULATION CHARACTERISTICS: 16K0F3E 11K0F3E
8K10F1E
8K10F1D
RECEIVER
25 / 30 kHz
12.5 / 15 kHz
SENSITIVITY: 12dB SINAD 0.28µV 0.28µV
FREQUENCY SPREAD: 38 MHz 38 MHz
SELECTIVITY: 75 dB 70 dB
IMAGE AND SPURIOUS RESPONSES: 80 dB 80 dB
INTERMODULATION: 75 dB 75 dB
AUDIO RESPONSE (per EIA): +1 dB / -3 dB +1 dB / -3 dB
AUDIO OUTPUT (@ 5% Dist.): 5/10 Watts 5/10 Watts
HUM AND NOISE 50 dB 45 dB
AUDIO FREQUENCY LOAD (5/10 Watts) 16/8 Ohms 16/8 Ohms
INPUT IMPEDANCE 50 Ohms 50 Ohms
1.4 ACCESSORIES
Use only BK Radio approved, supplied, or replacement accessories. Use of non-BK Radio
approved accessories may exceed the FCC RF exposure guidelines. For a list of BK Radio
approved accessories visit the following website: http://www.relm.com
1.5 LICENSE REQUIREMENTS
This equipment must be licensed by the Federal Communications Commission (FCC) before it
may be used. Your BK Radio dealer can assist you in filing the appropriate application for the
FCC, and will program each radio with your authorized frequencies and signaling codes.
1.6 SERVICE INFORMATION
If you need service, contact your local BK Radio dealer equipped to service your radio. If you find
it impractical to have service performed by your local dealer, contact BK Radio at the address
below:
BK Radio
ATTN: Customer Service
7100 Technology Drive
West Melbourne, FL 32904
Voice [phone]
FAX [phone]